Highway track



C. T. ELDBEDGE.

HIGHWAY TRACK. APPpicAloN FILED gue. la. 1921.

1,41 3,839, Patented Apr. 25, 1922.

I N yV EN TOR. CL V05 7 [Lo/wmf.

ATTORNEYS.

HIGHWAY TRACK.

Application inea August 1s, 1921; serial No, iezazaiamf` f To all whom tmay concern:

Be it known that I, CLYDE TALBOT EL- nunocn, a citizen ci the UnitedStates, and resident of San Francisco, county of San Francisco,'andState of California, have invented a new and useful Highway Track, ofwhich the following is a specification.

rIhe present invention relates to improvements in highway tracks and itsobject is to provide metal tracks for macadamized or concrete road-bedsby means of strong, cheap and light rails inserted in the road-bed.Various forms may be designed for this purpose and I show in theaccompanying drawings three different applications of the prin.- ciplesinvolved in my invention, the three different designs, while revolvingon the `same principle, being selected to illustrate how the principlecan be successfully applied to roads subject to heavy, medium or lighttraflic.

In the drawing Figure 1'is a perspective view of a single track rail,designed'for heavy traffic, Figure 2 a cross-sectional view of a roadbedhaving rails designed for medium tralic embedded therein, and Figure 3an end view of a single track rail designed for light traHic.

Referring to the drawing in detail it will be noted that in the formshown in Figure 1 the top plate 1 of the rail, which is rather light inweight, is supported by the two T bars 2 placed in such a manner thatthe outer end 3 of the T is flush with the outer edged of the topplate,and the webs 6 of the T, which extend vertically into the concrete,preferably to the depth'indicated in Figure 2, support two'rail portionslying intermediate between the edge and the center of the top plate. Theweb is provided, at its lower end,

Y with a flanged base 7, which. when embedded in and covered by theconcrete, serves as an anchor and firmly engages they T Abar with theconcrete and prevents any vertical play. The top plate is secured to theT bars by means of the rivets 8 and short angle irons 9, bolted to the Tbar and the top plate, as shown at 11, and secured to the web of the Tbar by the bolt 14, are usedA to join two adjoining lengths of rail.

I wish to point out that the lightness of the construction, especiallyas regards the edge portions of the rails, is a particular feature of myrail and that the supporting Ts give sufficient strength to thestructure to Specification of Letters Patent. Patentgd Apr. 25, 1922;

allow the top plate to be of comparatively light weight. A

To further reinforce the structure and make a closer union between therails and the concrete I provide a plurality of cross bars 16 whichpenetrate the web and extend transversely through the roadbed and lonc igitudinal bars 20 secured tothe cross bars, thereby binding rail androadbed into one solid structure.

from that of Figure 1 only in so far as it is somewhat lighter anddesigned for roads where the traiic is not so very heavy. v Thedifference consists in the substitution of the L bars 17 for the T bars,the horizontal portion 18 of the L bar being secured to the outer partof the top plate, and the vertical portion 19 taking the place of theweb, an anchoring base 21 being rovided like that in the structure shownin igure 1.

In Figure 3 I show a construction suitable for roads of light traffic.While the general idea embodied in the other structures, that is, thesupporting of a rather light plate by preserved, this modification showsthe whole rail as consisting yolione inverted channel y I iron, thel web22 of the channel taking the place of the plate above referred to, andthe flanges 23 of the channels taking the place of the supporting websof Figure 1, the anand the roadbed for combining the same into 100 a'solid structure.

2. In a highway track for a roadbed, two rails running parallel to eachother, 1 each comprising a horizontal plate disposed longitudinally ofthe roadbed, supporting mem- 105 bers placed on edge underneath theedgeportions of the plate and embedded inthe roadbed, transverse metalmembers extending through the supporting members and the roadbed andlongitudinal members crossing 110` The structure shown in Figure 2differs a means of webs anchored in the concrete, is

the transverse members for binding the rails and the roadbed into onesolid structure.

3. ln a highway track for a roadbed, a rail comprising a horizontalplate disposed longitudinally of the roadbed, tWo "i" shaped membersplaced underneath the edge portions of the plate so that the outer edgesare substantially flush, the Webs of the T shaped members being embeddedin the roadbed.

4. In a highway track for a roadbed, a rail comprising a horizontalplate disposed longitudinally of the roadbed, two 'l' shaped membersplaced underneath the edge portions of the plate so that the outer edgesare substantially flush, the Webs of the T shaped members being`embedded in the roadbed, and having` lateral flanges at their loweredges for anchoring the same in the roadbed.

CLYDE T. ELDREDGE.

